Table 3.
Selected chest CT image features and Scores analysis
| CT parameter | All patients N = 73 |
RT-PCR confirmed COVID-19 N = 30 |
Laboratory or clinical confirmed non-COVID-19 N = 43 |
χ2 statistic | P-value | |
|---|---|---|---|---|---|---|
| Positive + 1 | Posterior part/lower lobe predilection | 66 (90.4) | 30 (100.0) | 36 (83.7) | 7.923 | 0.005* |
| Bilateral involvement | 33 (45.2) | 18 (60.0) | 15 (34.9) | 4.500 | 0.034* | |
| Rounded GGO | 9(12.3) | 8 (26.7) | 1 (2.3) | 10.226 | 0.001* | |
| Subpleural bandlike GGO | 16 (21.9) | 14 (46.7) | 2 (4.7) | 18.228 | < 0.001* | |
| Crazy-paving pattern | 37 (50.7) | 23 (76.7) | 14 (32.6) | 13.755 | < 0.001* | |
| Peripheral distribution | 58 (79.5) | 29 (96.7) | 29 (67.4) | 9.245 | 0.002* | |
| GGO +/− consolidation | 66 (90.4) | 27 (90.0) | 39 (90.7) | 0.010 | 0.921 | |
| Negative − 1 | Only one lobe involvement | 34 (46.6) | 9 (30.0) | 25 (58.1) | 5.623 | 0.018* |
| Only Central distribution (peribronchovascular) | 15 (20.5) | 1 (3.3) | 14 (32.6) | 9.245 | 0.002* | |
| Tree-in-Bud sign (centrilobular nodules) | 6 (8.2) | 0 (0.0) | 6 (14.0) | 6.723 | 0.010* | |
| Bronchial wall thickening | 12 (16.4) | 1 (3.3) | 11 (25.6) | 7.572 | 0.006* | |
| Total Score median (IQR) | 2 (1–4) | 4 (2–5) | 2 (0–2) | 4.637 | < 0.001 | |
GGO Ground glass opacification
* P <0.05 was considered as statistical significant